One of the more interesting tech articles I read this past weekend was an easily digestible piece on the Royal Pingdom blog on the software that powers Facebook.

With a service approach 500 million users, Facebook is entering a rare space on the Internet. It's easy to take the free service for granted because the site's been doing a good job lately of working well -- and fast. But managing the scale of the millions -- okay, billions -- of daily interactions on that site must be an awesome feat every day.

For instance, Royal Pingdom writes that Facebook has more photos than all other photo sites combined, including Flickr.

It's interesting to note that Facebook has developed programming languages that they've allowed to go open source.

Take a gander at the article if you're feeling a tad geeky this morning.